Bornin Bucharest, Alina trained in Kiev for seven years before joining the Royal Ballet School in 1997. Upon completion of her training, six month later, she returned to Kiev, to join the company as a principal dancer. A year later she joined the Royal Ballet Company (november 1999) and at the end of the season she was promoted to Soloist. On 17April 2001 Sir Anthony Dowell promoted Alina to the rank of principal dancer after her performance of Giselle. Alina joined the English National Ballet in September 2013, as a Leading Principal Dancer. While a member of ENB she continues to perform as a guest artist with companies worldwide, and is a regular guest with the Hamburg Ballet and American Ballet Theatre. Alina has Organized Gala's in Romania and in London (Hospice of Hope) over the last few years. In February 2012 Alina premiered her Alina Cojocaru - Dream Project, in Tokyo, Japan, which she directed and staged, while performing along side friends and colleagues from the Tokyo Ballet, Hamburg Ballet, ENB and Royal Ballet. Alina's second Dream Project took place in July 2014. In 2015 Alina presented a charity Gala at the Lincoln Center NY.

Repertory includes:

Odette/Odile in Swan Lake, Juliet in Romeo and Juliet, Giselle, Princess Aurora and Princess Florine in Sleeeping Beauty, Julie in Liliom, Marguerite Gautier in Lady of the Camellias, Vera and Natalya in A Month in the Country, Kitri in Don Quixote, Olga and Tatiana in Onegin, Cinderella, The Sugar Plum Fairy and Clara in Nutcracker, Titania in Dream, Titania and Hippolyta in a Midsummer nights dream, Ballerina in Etudes, Nikiya in Bayadere, Diamonds in Jewels, Marguerite in Marguerite and Armand, Symphonic Variations, Mary Vetsera in Mayerling, Manon, La Sylphide, In the Night, Las Hermanas, Swanilda in Coppelia, Scenes de Ballet, Gong, Masquerade, Polyphonia, Symphony in C, Chloe in Daphnis and Chloe, Lise in Fille Mal Gardee, Student in The Lesson, Duo Concertant, The Leaves Are Fading, Other Dances, Voices of Spring, Beyond Bach, Tombeaux, Ondine, Virtiginous Thrill Of Exatitude, Fest Polonaise, Stars and Stribes, Raymonda act 3, Flames of Paris, Medora in Le Corsaire, Flower Festival, Napoli act 3, Grand Pas Classique, Tjakovski Pas de Deux. Musorgski Waltz, Dances at a Gathering, Dying Swan, Rushes, Two Footnotes, Chroma, Bird as a Prophet, No Man's Land, Sylvie in In the Middle somewhat Elevated, Spring and Fall and many more.